Poulton Stuart (CIK 0001942597)

Latest company ownership

KPTI - Karyopharm Therapeutics Inc.

Role: EVP, Chief Development Officer

Shares held

67,392

Last filed at

Oct 16, 2025

Confidence Score

55.1

2025Q4

Confidence Score History

2023Q1 2025Q4

Recent buy/sell transactions

Exec date	Filing date	Company	Role	Signal	Confidence	Shares	% of shares	Under plan?	Amount (USD)
Sep 12, 2025	Sep 16, 2025	Karyopharm Therapeutics Inc.	EVP, Chief Development Officer	Sell	77.5	+487	1.79%	✗	$2.6K
Jul 29, 2025	Jul 30, 2025	Karyopharm Therapeutics Inc.	EVP, Chief Development Officer	Sell	50.0	-191	-0.70%	✗	$834.7
Mar 4, 2025	Mar 6, 2025	Karyopharm Therapeutics Inc.	EVP, Chief Development Officer	Sell	46.3	-3,548	-11.46%	✗	$22.3K
Feb 18, 2025	Feb 19, 2025	Karyopharm Therapeutics Inc.	EVP, Chief Development Officer	Sell	47.5	-5,914	-1.81%	✗	$3.7K
Jul 30, 2024	Jul 31, 2024	Karyopharm Therapeutics Inc.	EVP, Chief Development Officer	Sell	50.0	-2,883	-0.87%	✗	$3.1K
Feb 29, 2024	Mar 4, 2024	Karyopharm Therapeutics Inc.	EVP, Chief Development Officer	Sell	46.3	-22,466	-6.38%	✗	$26.5K
Feb 15, 2024	Feb 20, 2024	Karyopharm Therapeutics Inc.	EVP, Chief Development Officer	Sell	47.5	-5,847	-3.45%	✗	$7.8K
Jul 28, 2023	Aug 1, 2023	Karyopharm Therapeutics Inc.	EVP, Chief Development Officer	Sell	47.5	-2,845	-1.79%	✗	$4.8K
Feb 15, 2023	Feb 17, 2023	Karyopharm Therapeutics Inc.	EVP, Chief Development Officer	Sell	46.3	-5,869	-8.38%	✗	$18.7K